.d_main {
    position: absolute; /*绝对定位*/
    top:2px;
    bottom:2px;
    right:2px;
    left: 2px;
    /*border: 1px solid red;*/
}

.d_detail02 {
    position: absolute;
    width: 100%;
    top: 1px;
    bottom: 1px;
     border: 1px solid darkmagenta;
}
